diff --git a/Gemfile.lock b/Gemfile.lock
index f2afb03..fbaf0d9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
       rack (>= 0.9.0)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
-    builder (3.2.2)
+    builder (3.2.4)
     celluloid (0.17.2)
       celluloid-essentials
       celluloid-extras
@@ -75,7 +75,9 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.9.1.1)
+    concurrent-ruby (1.1.8)
     connection_pool (2.2.0)
+    crass (1.0.6)
     daemons (1.2.3)
     debug_inspector (0.0.2)
     devise (3.5.2)
@@ -115,7 +117,8 @@ GEM
     high_voltage (2.4.0)
     hiredis (0.6.0)
     hitimes (1.2.3)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jbuilder (2.3.2)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
@@ -123,21 +126,22 @@ GEM
       rails-dom-testing (~> 1.0)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.3)
+    json (1.8.6)
     jwt (1.5.2)
-    loofah (2.0.3)
+    loofah (2.9.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
     mime-types (2.6.2)
-    mini_portile (0.6.2)
-    minitest (5.8.2)
+    mini_portile2 (2.4.0)
+    minitest (5.12.0)
     multi_json (1.11.2)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
-    nokogiri (1.6.6.2)
-      mini_portile (~> 0.6.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     oauth2 (1.0.0)
       faraday (>= 0.8, < 0.10)
       jwt (~> 1.0)
@@ -168,7 +172,7 @@ GEM
       pry (>= 0.9.10)
     pundit (1.0.1)
       activesupport (>= 3.0.0)
-    rack (1.6.4)
+    rack (1.6.13)
     rack-google-analytics (1.2.0)
       actionpack
       activesupport
@@ -188,14 +192,14 @@ GEM
     rails-assets-bxslider-4 (4.2.5)
       rails-assets-jquery (>= 1.8.3)
     rails-assets-jquery (2.1.4)
-    rails-deprecated_sanitizer (1.0.3)
+    rails-deprecated_sanitizer (1.0.4)
       activesupport (>= 4.2.0.alpha)
-    rails-dom-testing (1.0.7)
-      activesupport (>= 4.2.0.beta, < 5.0)
-      nokogiri (~> 1.6.0)
+    rails-dom-testing (1.0.9)
+      activesupport (>= 4.2.0, < 5.0)
+      nokogiri (~> 1.6)
       rails-deprecated_sanitizer (>= 1.0.1)
-    rails-html-sanitizer (1.0.2)
-      loofah (~> 2.0)
+    rails-html-sanitizer (1.3.0)
+      loofah (~> 2.3)
     rails_12factor (0.0.3)
       rails_serve_static_assets
       rails_stdout_logging
@@ -298,11 +302,11 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       rack (~> 1.0)
     thor (0.19.1)
-    thread_safe (0.3.5)
+    thread_safe (0.3.6)
     tilt (2.0.1)
     timers (4.1.1)
       hitimes
-    tzinfo (1.2.2)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)